EP3448714B1 - Longitudinal adjuster and vehicle seat - Google Patents

Longitudinal adjuster and vehicle seat Download PDF

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Publication number
EP3448714B1
EP3448714B1 EP17723290.7A EP17723290A EP3448714B1 EP 3448714 B1 EP3448714 B1 EP 3448714B1 EP 17723290 A EP17723290 A EP 17723290A EP 3448714 B1 EP3448714 B1 EP 3448714B1
Authority
EP
European Patent Office
Prior art keywords
locking
longitudinal adjuster
adjuster according
locking element
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17723290.7A
Other languages
German (de)
French (fr)
Other versions
EP3448714A1 (en
Inventor
Joachim Flick
Erik Sprenger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keiper Seating Mechanisms Co Ltd
Original Assignee
Adient Luxembourg Holding SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adient Luxembourg Holding SARL filed Critical Adient Luxembourg Holding SARL
Publication of EP3448714A1 publication Critical patent/EP3448714A1/en
Application granted granted Critical
Publication of EP3448714B1 publication Critical patent/EP3448714B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
    • B60N2/0812—Location of the latch
    • B60N2/0818—Location of the latch inside the rail
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/07—Slide construction
    • B60N2/0702—Slide construction characterised by its cross-section
    • B60N2/0705—Slide construction characterised by its cross-section omega-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
    • B60N2/0831—Movement of the latch
    • B60N2/0862—Movement of the latch sliding
    • B60N2/0875—Movement of the latch sliding in a vertical direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/08—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable characterised by the locking device
    • B60N2/0881—Activation of the latches by the control mechanism
    • B60N2/0893—Activation of the latches by the control mechanism allowing independent movement of the latches, e.g. to recover tolerance errors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/20—Measures for elimination or compensation of play or backlash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces
    • B60N2205/35—Seat, bench or back-rests being split laterally in two or more parts

Definitions

  • the invention relates to a longitudinal adjuster with the features of the preamble of claim 1 and a vehicle seat.
  • a generic vehicle seat or a locking device for a longitudinal adjuster for a vehicle seat are for example from DE102008056683 or from the DE 100 50 957 A1 known.
  • the vehicle seat has a pair of seat rails consisting of an upper rail and a lower rail, the two walls of which are penetrated by the teeth of the locking element on each side of a locking element. With this locking device there is only one locking element that locks in a defined gradation.
  • a longitudinal adjuster for a vehicle seat with at least one lower rail, at least one upper rail displaceable in the longitudinal direction relative to the lower rail and at least one locking unit for locking the upper rail relative to the lower rail.
  • the locking unit comprises at least two locking elements which, for locking the upper rail and the lower rail, engage in the same stepwise locking so that in a pre-locking stage at least one of the locks pre-locks the upper rail and the lower rail with a play to one another and that in a locking stage at least one of the Locks the upper rail and the lower rail are locked together without play.
  • a locking device for a vehicle seat with at least one locking element which is movable relative to at least one counter element, in particular in one Direction of incidence, and cooperates with the counter element to lock two components of the vehicle seat together, the locking element with at least one tooth contacting the edge region of the counter element and being coated with at least one cover layer at least on the surface of the tooth.
  • the cover layer consists of an organic matrix with embedded, in particular inorganic, particles.
  • the invention is based on the object of improving a longitudinal adjuster of the type mentioned at the outset, in particular increasing the load-bearing capacity, and providing a corresponding vehicle seat.
  • a longitudinal adjuster in particular for a vehicle seat, preferably for a vehicle rear seat, with two pairs of rails arranged at a distance from one another.
  • the pairs of rails are each made up of an upper rail fixed to the seat and a lower rail fixed to the structure, with a first locking element and at least one second locking element.
  • the first and second locking elements are held on the upper rail and, in a locking position, block a movement of the upper rail relative to the lower rail.
  • the lower rail has openings and the upper rail has slot-like openings.
  • the first locking element and the at least one second locking element each have tooth-like projections on their two opposite longitudinal sides, which are guided in the slot-like openings and which in the locking position reach through both the slot-like openings and the openings, with only the first locking element in the The locking position to release the pair of rails only partially engages in the openings, while the at least one second locking element is always completely inserted into the openings in its locking position.
  • a general mode of operation of locking seat rails of a vehicle seat by means of such locking elements is, for example, from FIG DE 100 50 957 A1 known, the relevant disclosure content, in particular the design, dimensioning, arrangement and operation of the locking elements, is expressly included.
  • the outer dimensions, in particular a length and a width, of the respective locking elements are designed differently.
  • the number of tooth-like projections on the respective locking elements can be different.
  • the outer shape of the tooth-like projections on the locking elements can be designed differently, in particular the tooth-like projections of at least one locking element can be designed conically and / or the tooth-like projections at least one Have locking element laterally beveled side flanks.
  • “Conical” in the context of the invention is generally to be understood as a tapering of a circumference, a width or a radius.
  • the openings in the lower rail can be designed tooth-like, for example in the form of a locking comb, with downwardly directed openings or in the form of locking holes, in particular with a circumferentially closed edge.
  • a vehicle seat in particular a vehicle rear seat, having a seat part, a backrest articulated to the seat part and a longitudinal adjuster described above.
  • the locking takes place with two independent latching elements.
  • the first locking element can as in the prior art according to DE 100 50 957 A1 described example, the two profiles are fixed to each other without play after locking.
  • the depth of incidence can depend on the current individual part tolerances, which to a certain extent also influences the locking strength of the locking elements.
  • the second latching element can be designed so that, when locking, it falls completely into the tooth gaps of the lower rail, ie up to the base of the tooth gaps.
  • the second latching element can thus preferably be free from the influences of a tolerance chain and always fully engaged.
  • the strength of the two latching elements thus adds up to the overall strength of the lock.
  • the number of teeth of the two locking elements can be selected almost freely according to the requirements (required locking strength).
  • An unlocking of the two locking plates can be done with an unlocking system, as for example in the DE 10 2015 220 262 A1 is described, take place, the relevant disclosure content is expressly included.
  • the in Figure 1 The schematically illustrated vehicle seat 1, in this case a vehicle rear seat, is described below using three spatial directions running perpendicular to one another.
  • a longitudinal direction x runs largely horizontally and preferably parallel to a vehicle longitudinal direction, which is the usual one Corresponds to the direction of travel of the vehicle.
  • a transverse direction y running perpendicular to the longitudinal direction x is also oriented horizontally in the vehicle and runs parallel to a transverse direction of the vehicle.
  • a vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y. In the case of a vehicle seat 1 installed in the vehicle, the vertical direction z runs parallel to the vertical axis of the vehicle.
  • the position information and direction information used such as front, rear, top and bottom refer to a viewing direction of an occupant sitting in the vehicle seat 1 in a normal sitting position, the vehicle seat 1 being installed in the vehicle, in a position of use suitable for passenger transport with an upright backrest 5 and is aligned in the direction of travel as usual.
  • the vehicle seat 1 according to the invention can also be installed in a different orientation, for example transversely to the direction of travel.
  • the in Fig. 1 The vehicle seat 1 shown is divided into two areas, a first part 1a and a second part 1b.
  • the second part 1b comprises two seats, while the first part 1a only provides one seat.
  • a division of the total seat width into a width of the first part 1a of 40% of the total seat width and a width of the second part 1b of 60% of the total seat width corresponds to a usual division.
  • Each of the two parts 1 a, 1 b has a seat part 3 and a backrest 5 that is articulated on the respective seat part 3.
  • the present longitudinal adjuster according to the invention is preferably used in conjunction with the second part 1b, since in the event of a crash it has to withstand a higher load due to its greater width.
  • the longitudinal adjuster shown has the upper rail 10a fixed to the seat and the lower rail 10b fixed to the structure.
  • a pair of rails 10 of the longitudinal adjuster is shown in further detail in a cross-sectional view.
  • the Pair of rails 10 has a first locking element 16a, which is held on the upper rail 10a, and a second locking element 16b offset in the longitudinal direction x to the first locking element 16a - in Fig. 3 not shown for reasons of illustration technology - which is also held on the upper rail 10a.
  • the two locking elements 16a, 16b have tooth-like projections 18 protruding parallel to the transverse direction y on their two opposite longitudinal sides.
  • the upper rail 10a has slot-like openings 12 in which the tooth-like projections 18 of the two locking elements 16a, 16b are guided.
  • the lower rail 10b has tooth-like openings 14 into which the tooth-like projections 18 of the two locking elements 16a, 16b at least partially enter when the two locking elements 16a, 16b are in a locking position in which a movement of the upper rail 10a relative to the lower rail 10b is blocked, are convicted.
  • the openings 14 can preferably have at least one beveled side surface, in particular the openings 14 can be conical in order to facilitate entry of the projections 18 and to allow clearance between the upper rail 10a and the lower rail 10b.
  • a guide pin 20 is connected to the locking elements 16a, 16b.
  • the guide pin 20 is linearly guided in a through opening in the upper rail 10a.
  • a return spring 22 is provided in each case.
  • FIG. 13 is a fragmentary view of a longitudinal section of the pair of rails from FIG Fig. 2 shown in the unlocked position.
  • the two locking elements 16a, 16b are moved maximally downwards, so that they rest against a bottom section of the slot-like openings 12 of the upper rail 10a.
  • the tooth-like projections 18 of the two locking elements 16a, 16b are thus at a maximum distance from the tooth-like openings 14 of the lower rail 10b and release the pair of rails 10 in the longitudinal direction.
  • FIG. 13 is a fragmentary view of a longitudinal section of the pair of rails from FIG Fig. 2 shown in locked position.
  • the first locking element 16a shown in the figure on the right has only partially entered the openings 14, until one of the tooth-like projections 18 comes into contact with the lower rail 10b and the upper rail 10a without play.
  • the first locking element 16a now generates the clearance clearance, as shown in FIG DE 100 50 957 A1 is described, the relevant disclosure content of which is hereby expressly included.
  • the depth of incidence is thus dependent on the tolerances of the tooth-like projections 18 which remove play, the slot-like opening 12 in the upper rail 10a and the openings 14 in the lower rail 10b.
  • the achievable locking strength depends to a certain extent on the depth of immersion of the tooth-like projections 18 of the locking element 16a, 16b in the tooth-like openings 14 of the lower rail 10b, which in turn depends on an angle of the side surfaces to one another.
  • the second locking element 16b shown in the figure on the left has no play-relieving function.
  • the immersion depth is limited by a tooth base of the tooth-like openings 14 of the lower rail 10b.
  • the second locking element 16b is thus designed to always provide or achieve the maximum possible locking strength for the second locking element 16b through the maximum possible immersion depth achieved in the locked state.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Description

Die Erfindung betrifft einen Längseinsteller mit den Merkmalen des Oberbegriffs des Anspruchs 1 sowie einen Fahrzeugsitz.The invention relates to a longitudinal adjuster with the features of the preamble of claim 1 and a vehicle seat.

Stand der TechnikState of the art

Ein gattungsgemäßer Fahrzeugsitz bzw. eine Verriegelungsvorrichtung für einen Längseinsteller für einen Fahrzeugsitz sind beispielsweise aus DE102008056683 oder aus der DE 100 50 957 A1 bekannt. Der Fahrzeugsitz weist zur Längsverstellung ein Sitzschienenpaar bestehend aus einer Oberschiene und einer Unterschiene auf, derer beider Wände auf jeder Seite eines Verriegelungselements von den Zähnen des Verriegelungselements durchgriffen werden. Bei dieser Verriegelungsvorrichtung gibt es nur ein Verriegelungselement das in einer definierten Stufung verriegelt.A generic vehicle seat or a locking device for a longitudinal adjuster for a vehicle seat are for example from DE102008056683 or from the DE 100 50 957 A1 known. For longitudinal adjustment, the vehicle seat has a pair of seat rails consisting of an upper rail and a lower rail, the two walls of which are penetrated by the teeth of the locking element on each side of a locking element. With this locking device there is only one locking element that locks in a defined gradation.

Aus der DE 10 2014 225 426 A1 ist ein Längseinsteller für einen Fahrzeugsitz bekannt, mit zumindest einer Unterschiene, zumindest einer gegenüber der Unterschiene in Längsrichtung verschiebbaren Oberschiene und zumindest einer Verriegelungseinheit zum Verriegeln der Oberschiene gegenüber der Unterschiene. Weiter umfasst die Verriegelungseinheit zumindest zwei Verriegelungselementen, welche zum Verriegeln von der Oberschiene und der Unterschiene derart stufenweise sperrend in dieselben eingreifen, dass in einer Vorverriegelungsstufe zumindest eine der Verriegelungen die Oberschiene und die Unterschiene mit einem Spiel zueinander vorverriegelt und dass in einer Verriegelungsstufe zumindest eine der Verriegelungen die Oberschiene und die Unterschiene spielfrei miteinander verriegelt.From the DE 10 2014 225 426 A1 a longitudinal adjuster for a vehicle seat is known, with at least one lower rail, at least one upper rail displaceable in the longitudinal direction relative to the lower rail and at least one locking unit for locking the upper rail relative to the lower rail. Furthermore, the locking unit comprises at least two locking elements which, for locking the upper rail and the lower rail, engage in the same stepwise locking so that in a pre-locking stage at least one of the locks pre-locks the upper rail and the lower rail with a play to one another and that in a locking stage at least one of the Locks the upper rail and the lower rail are locked together without play.

Aus der DE 10 2008 028 688 A1 ist eine Verriegelungsvorrichtung für einen Fahrzeugsitz bekannt, mit wenigstens einem Verriegelungselement, welches relativ zu wenigstens einem Gegenelement beweglich ist, insbesondere in einer Einfallrichtung, und mit dem Gegenelement zusammenwirkt, um zwei Bauteile des Fahrzeugsitzes miteinander zu verriegeln, wobei das Verriegelungselement mit wenigstens einem Zahn den Randbereich des Gegenelementes kontaktiert und wenigstens an der Oberfläche des Zahnes mit wenigstens einer Deckschicht beschichtet ist. Die Deckschicht besteht aus einer organischen Matrix mit eingelagerten, insbesondere anorganischen Partikeln.From the DE 10 2008 028 688 A1 a locking device for a vehicle seat is known, with at least one locking element which is movable relative to at least one counter element, in particular in one Direction of incidence, and cooperates with the counter element to lock two components of the vehicle seat together, the locking element with at least one tooth contacting the edge region of the counter element and being coated with at least one cover layer at least on the surface of the tooth. The cover layer consists of an organic matrix with embedded, in particular inorganic, particles.

Aufgabetask

Der Erfindung liegt die Aufgabe zu Grunde, einen Längseinsteller der eingangs genannten Art zu verbessern, insbesondere die Lastaufnahmefähigkeit zu erhöhen, sowie einen entsprechenden Fahrzeugsitz bereitzustellen.The invention is based on the object of improving a longitudinal adjuster of the type mentioned at the outset, in particular increasing the load-bearing capacity, and providing a corresponding vehicle seat.

Lösungsolution

Diese Aufgabe wird erfindungsgemäß gelöst, durch einen Längseinsteller, insbesondere für einen Fahrzeugsitz, bevorzugt für einen Fahrzeugfondsitz, mit zwei im Abstand voneinander angeordneten Schienenpaaren. Die Schienenpaare sind jeweils aus einer sitzfesten Oberschiene und einer strukturfesten Unterschiene aufgebaut, mit einem ersten Verriegelungselement und wenigstens einem zweiten Verriegelungselement. Das erste und zweite Verriegelungselement ist an der Oberschiene gehalten und sperrt in einer Verriegelungsstellung eine Bewegung der Oberschiene relativ zur Unterschiene. Die Unterschiene weist Durchbrüche und die Oberschiene schlitzartige Öffnungen auf. Das erste Verriegelungselement und das wenigstens eine zweite Verriegelungselement weisen jeweils an ihren beiden gegenüberliegenden Längsseiten zahnartige Vorsprünge auf, welche in den schlitzartigen Öffnungen geführt sind, und welche in der Verriegelungsstellung sowohl die schlitzartigen Öffnungen als auch die Durchbrüche durchgreifen, wobei ausschließlich das erste Verriegelungselement in der Verriegelungsstellung zur Spielfreistellung des Schienenpaares lediglich teilweise in die Durchbrüche eingreift, während das wenigstens eine zweite Verriegelungselement in seiner Verriegelungsstellung immer vollständig in die Durchbrüche eingeführt ist.According to the invention, this object is achieved by a longitudinal adjuster, in particular for a vehicle seat, preferably for a vehicle rear seat, with two pairs of rails arranged at a distance from one another. The pairs of rails are each made up of an upper rail fixed to the seat and a lower rail fixed to the structure, with a first locking element and at least one second locking element. The first and second locking elements are held on the upper rail and, in a locking position, block a movement of the upper rail relative to the lower rail. The lower rail has openings and the upper rail has slot-like openings. The first locking element and the at least one second locking element each have tooth-like projections on their two opposite longitudinal sides, which are guided in the slot-like openings and which in the locking position reach through both the slot-like openings and the openings, with only the first locking element in the The locking position to release the pair of rails only partially engages in the openings, while the at least one second locking element is always completely inserted into the openings in its locking position.

Dadurch, dass ausschließlich das erste Verriegelungselement in der Verriegelungsstellung zur Spielfreistellung des Schienenpaares lediglich teilweise in die Durchbrüche eingreift, während das wenigstens eine zweite Verriegelungselement in seiner Verriegelungsstellung immer vollständig in die Durchbrüche eingeführt ist, kann die maximal mögliche Lastaufnahme durch die Verriegelungselemente sicher gestellt werden. Eine allgemeine Funktionsweise einer Verriegelung von Sitzschienen eines Fahrzeugsitzes mittels solcher Verriegelungselemente ist beispielsweise aus der DE 100 50 957 A1 bekannt, deren diesbezüglicher Offenbarungsgehalt, insbesondere die Ausgestaltung, Dimensionierung, Anordnung und Betätigung der Verriegelungselemente betreffend, ausdrücklich einbezogen wird.The fact that only the first locking element only partially engages the openings in the locking position to release the pair of rails while the at least one second locking element is always fully inserted into the openings in its locking position ensures that the maximum possible load absorption can be ensured by the locking elements. A general mode of operation of locking seat rails of a vehicle seat by means of such locking elements is, for example, from FIG DE 100 50 957 A1 known, the relevant disclosure content, in particular the design, dimensioning, arrangement and operation of the locking elements, is expressly included.

Vorteilhafte Ausgestaltungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind Gegenstand der Unteransprüche.Advantageous configurations which can be used individually or in combination with one another are the subject of the subclaims.

Darüber hinaus können mehrere weitere Verriegelungselemente zur weiteren Steigerung der Lastaufnahmefähigkeit vorgesehen sind. Bevorzugt gelangen insgesamt zwei bis fünf Verriegelungselemente zum Einsatz.In addition, several further locking elements can be provided to further increase the load-bearing capacity. A total of two to five locking elements are preferably used.

In weiter vorteilhafter Weise kann es vorgesehen sein, dass nur ein einziges Verriegelungselement zur Spielfreistellung der Oberschiene zur Unterschiene eingesetzt ist.In a further advantageous manner, it can be provided that only a single locking element is used to release the upper rail from the lower rail.

Die äußeren Abmessungen, insbesondere eine Länge und eine Breite, der jeweiligen Verriegelungselemente sind unterschiedlich ausgestaltet. Ferner kann die Anzahl der zahnartigen Vorsprünge an den jeweiligen Verriegelungselementen unterschiedlich sein. Ebenso kann die äußere Form der zahnartigen Vorsprünge an den Verriegelungselementen unterschiedlich ausgebildet sein, insbesondere können die zahnartigen Vorsprünge wenigstens eines Verriegelungselements konisch ausgebildet sein und/oder die zahnartigen Vorsprünge wenigstens eines Verriegelungselements seitlich abgeschrägte Seitenflanken aufweisen. Unter "konisch" im Sinne der Erfindung ist allgemein eine Verjüngung eines Umfangs, einer Breite oder eines Radius zu verstehen.The outer dimensions, in particular a length and a width, of the respective locking elements are designed differently. Furthermore, the number of tooth-like projections on the respective locking elements can be different. Likewise, the outer shape of the tooth-like projections on the locking elements can be designed differently, in particular the tooth-like projections of at least one locking element can be designed conically and / or the tooth-like projections at least one Have locking element laterally beveled side flanks. “Conical” in the context of the invention is generally to be understood as a tapering of a circumference, a width or a radius.

Die Durchbrüche in der Unterschiene können sowohl zahnartig, beispielsweise in Form eines Rastkamms, mit nach unten gerichteten Öffnungen oder in Form von Rastlöchern, insbesondere mit einem umlaufend geschlossenen Rand, ausgebildet sein.The openings in the lower rail can be designed tooth-like, for example in the form of a locking comb, with downwardly directed openings or in the form of locking holes, in particular with a circumferentially closed edge.

Die Aufgabe wird ferner gelöst, durch einen Fahrzeugsitz, insbesondere Fahrzeugfondsitz, aufweisend einen Sitzteil, eine an dem Sitzteil angelenkte Lehne und einen zuvor beschriebenen Längseinsteller.The object is also achieved by a vehicle seat, in particular a vehicle rear seat, having a seat part, a backrest articulated to the seat part and a longitudinal adjuster described above.

Zusammenfassend ausgeführt erfolgt die Verriegelung mit zwei unabhängigen Rastelementen. Das erste Rastelement kann wie im Stand der Technik nach der DE 100 50 957 A1 beschrieben Beispiel ausgeführt sein, wobei die beiden Profile nach dem Verriegeln spielfrei zueinander fixiert sind. Die Einfalltiefe kann von den aktuellen Einzelteiltoleranzen abhängig sein, was in gewissem Maße auch die Verriegelungsfestigkeit der Rastelemente mit beeinflusst. Das zweite Rastelement kann so ausgelegt sein, dass es beim Verriegeln vollständig in die Zahnlücken der Unterschiene, d.h. bis zum Grund der Zahnlücken, einfällt. Das zweite Rastelement kann somit bevorzugt frei von Einflüssen einer Toleranzkette und immer voll im Eingriff sein. Die Festigkeit der beiden Rastelemente addiert sich somit zu einer Gesamtfestigkeit der Verriegelung. Die Anzahl der Zähne der beiden Verriegelungselemente kann entsprechend der Erfordernisse (benötigte Verriegelungsfestigkeit) nahezu frei gewählt werden. Eine Entriegelung der beiden Verriegelungsplatten kann mit einem Entriegelungssystem, wie es beispielsweise in der DE 10 2015 220 262 A1 beschrieben ist, erfolgen, deren diesbezüglicher Offenbarungsgehalt ausdrücklich einbezogen wird.In summary, the locking takes place with two independent latching elements. The first locking element can as in the prior art according to DE 100 50 957 A1 described example, the two profiles are fixed to each other without play after locking. The depth of incidence can depend on the current individual part tolerances, which to a certain extent also influences the locking strength of the locking elements. The second latching element can be designed so that, when locking, it falls completely into the tooth gaps of the lower rail, ie up to the base of the tooth gaps. The second latching element can thus preferably be free from the influences of a tolerance chain and always fully engaged. The strength of the two latching elements thus adds up to the overall strength of the lock. The number of teeth of the two locking elements can be selected almost freely according to the requirements (required locking strength). An unlocking of the two locking plates can be done with an unlocking system, as for example in the DE 10 2015 220 262 A1 is described, take place, the relevant disclosure content is expressly included.

Figuren und Ausführungsformen der ErfindungFigures and embodiments of the invention

Bevor nachfolgend eine bevorzugte Ausgestaltung der Erfindung eingehender an Hand von Zeichnungen beschrieben wird, ist zunächst festzuhalten, dass die Erfindung nicht auf die beschriebenen Komponenten oder die beschriebenen Verfahrensschritte beschränkt ist. Weiterhin stellt auch die verwendete Terminologie keine Einschränkung dar, sondern hat lediglich beispielhaften Charakter. Soweit nachfolgend in der Beschreibung und den Ansprüchen der Singular verwendet wird ist dabei jeweils der Plural mitumfasst, soweit der Kontext dies nicht explizit ausschließt.Before a preferred embodiment of the invention is described in more detail below with reference to drawings, it should first be noted that the invention is not limited to the components described or the method steps described. Furthermore, the terminology used is not a restriction, but is merely an example. Insofar as the singular is used in the description and the claims below, the plural is also included, unless the context explicitly excludes this.

Im Folgenden ist die Erfindung anhand eines in den Figuren dargestellten vorteilhaften Ausführungsbeispiels näher erläutert. Die Erfindung ist jedoch nicht auf dieses Ausführungsbeispiel beschränkt. Es zeigen:

Fig. 1:
eine schematische Darstellung eines Fahrzeugsitzes,
Fig. 2:
eine perspektivische Ansicht eines Schienenpaares,
Fig. 3:
eine schematische Querschnittsdarstellung des Schienenpaares von Fig. 2,
Fig. 4:
eine ausschnittsweise Schnittdarstellung des Schienenpaares von Fig. 2 in entriegelter Stellung, und
Fig. 5:
eine ausschnittsweise Schnittdarstellung des Schienenpaares von Fig. 2 in verriegelter Stellung.
The invention is explained in more detail below using an advantageous exemplary embodiment shown in the figures. However, the invention is not restricted to this exemplary embodiment. Show it:
Fig. 1:
a schematic representation of a vehicle seat,
Fig. 2:
a perspective view of a pair of rails,
Fig. 3:
a schematic cross-sectional view of the pair of rails from Fig. 2 ,
Fig. 4:
a partial sectional view of the pair of rails from Fig. 2 in the unlocked position, and
Fig. 5:
a partial sectional view of the pair of rails from Fig. 2 in locked position.

Der in Figur 1 schematisch dargestellte Fahrzeugsitz 1, vorliegend ein Fahrzeugfondsitz, wird nachfolgend unter Verwendung von drei senkrecht zueinander verlaufenden Raumrichtungen beschrieben. Eine Längsrichtung x verläuft bei einem im Fahrzeug eingebauten Fahrzeugsitz 1 weitgehend horizontal und vorzugsweise parallel zu einer Fahrzeuglängsrichtung, die der gewöhnlichen Fahrtrichtung des Fahrzeuges entspricht. Eine zu der Längsrichtung x senkrecht verlaufende Querrichtung y ist im Fahrzeug ebenfalls horizontal ausgerichtet und verläuft parallel zu einer Fahrzeugquerrichtung. Eine Vertikalrichtung z verläuft senkrecht zu der Längsrichtung x und senkrecht zu der Querrichtung y. Bei einem im Fahrzeug eingebauten Fahrzeugsitz 1 verläuft die Vertikalrichtung z parallel zu der Fahrzeughochachse.The in Figure 1 The schematically illustrated vehicle seat 1, in this case a vehicle rear seat, is described below using three spatial directions running perpendicular to one another. In the case of a vehicle seat 1 installed in the vehicle, a longitudinal direction x runs largely horizontally and preferably parallel to a vehicle longitudinal direction, which is the usual one Corresponds to the direction of travel of the vehicle. A transverse direction y running perpendicular to the longitudinal direction x is also oriented horizontally in the vehicle and runs parallel to a transverse direction of the vehicle. A vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y. In the case of a vehicle seat 1 installed in the vehicle, the vertical direction z runs parallel to the vertical axis of the vehicle.

Die verwendeten Positionsangaben und Richtungsangaben, wie beispielsweise vorne, hinten, oben und unten beziehen sich auf eine Blickrichtung eines im Fahrzeugsitz 1 sitzenden Insassen in normaler Sitzposition, wobei der Fahrzeugsitz 1 im Fahrzeug eingebaut, in einer zur Personenbeförderung geeigneten Gebrauchsposition mit aufrecht stehender Lehne 5 und wie üblich in Fahrtrichtung ausgerichtet ist. Der erfindungsgemäße Fahrzeugsitz 1 kann jedoch auch in abweichender Ausrichtung, beispielsweise quer zur Fahrtrichtung verbaut werden.The position information and direction information used, such as front, rear, top and bottom refer to a viewing direction of an occupant sitting in the vehicle seat 1 in a normal sitting position, the vehicle seat 1 being installed in the vehicle, in a position of use suitable for passenger transport with an upright backrest 5 and is aligned in the direction of travel as usual. However, the vehicle seat 1 according to the invention can also be installed in a different orientation, for example transversely to the direction of travel.

Der in Fig. 1 dargestellte Fahrzeugsitz 1 ist in zwei Bereiche, einem ersten Teil 1a und einem zweiten Teil 1b, aufgeteilt. Der zweite Teil 1b umfasst zwei Sitzplätze, während der erste Teil 1a lediglich ein Sitzplatz bereitstellt. Eine Unterteilung der gesamten Sitzbreite in eine Breite des ersten Teils 1a von 40% der gesamten Sitzbreite und eine Breite des zweiten Teils 1b von 60% des gesamten Sitzbreite entspricht einer üblichen Aufteilung. Jeder der beiden Teile 1a, 1b weist jeweils einen Sitzteil 3 sowie eine gelenkig an dem jeweiligen Sitzteil 3 gelagerte Lehne 5 auf.The in Fig. 1 The vehicle seat 1 shown is divided into two areas, a first part 1a and a second part 1b. The second part 1b comprises two seats, while the first part 1a only provides one seat. A division of the total seat width into a width of the first part 1a of 40% of the total seat width and a width of the second part 1b of 60% of the total seat width corresponds to a usual division. Each of the two parts 1 a, 1 b has a seat part 3 and a backrest 5 that is articulated on the respective seat part 3.

Der vorliegende erfindungsgemäße Längseinsteller gelangt bevorzugt in Verbindung mit dem zweiten Teil 1b zum Einsatz, da dieser im Crashfall aufgrund seiner größeren Breite eine höhere Belastung aushalten muss. Die zwei im Abstand voneinander, parallel zueinander, angeordneten Schienenpaare 10 weisen jeweils eine Oberschiene 10a und eine Unterschiene 10b auf, welche einander wechselseitig umgreifen und relativ zueinander verschieblich gelagert sind.The present longitudinal adjuster according to the invention is preferably used in conjunction with the second part 1b, since in the event of a crash it has to withstand a higher load due to its greater width. The two pairs of rails 10 arranged at a distance from one another, parallel to one another, each have an upper rail 10a and a lower rail 10b which alternately encompass one another and are mounted displaceably relative to one another.

Der in Fig. 2 gezeigte Längseinsteller weist die sitzfeste Oberschiene 10a und die strukturfeste Unterschiene 10b auf. In Fig. 3 ist ein Schienenpaar 10 des Längseinstellers weiter im Detail in einer Querschnittsansicht dargestellt. Das Schienenpaar 10 weist ein erstes Verriegelungselement 16a, welches an der Oberschiene 10a gehalten ist, und in Längsrichtung x zum ersten Verriegelungselement 16a versetzt ein zweites Verriegelungselement 16b - in Fig. 3 aus darstellungstechnischen Gründen nicht gezeigt - auf, welches ebenfalls an der Oberschiene 10a gehalten ist. Die beiden Verriegelungselemente 16a, 16b weisen an ihren beiden gegenüberliegenden Längsseiten, parallel zur Querrichtung y abstehende zahnartige Vorsprünge 18 auf. Die Oberschiene 10a weist schlitzartige Öffnungen 12 auf, in welchen die zahnartigen Vorsprünge 18 der beiden Verriegelungselemente 16a, 16b geführt sind.The in Fig. 2 The longitudinal adjuster shown has the upper rail 10a fixed to the seat and the lower rail 10b fixed to the structure. In Fig. 3 a pair of rails 10 of the longitudinal adjuster is shown in further detail in a cross-sectional view. The Pair of rails 10 has a first locking element 16a, which is held on the upper rail 10a, and a second locking element 16b offset in the longitudinal direction x to the first locking element 16a - in Fig. 3 not shown for reasons of illustration technology - which is also held on the upper rail 10a. The two locking elements 16a, 16b have tooth-like projections 18 protruding parallel to the transverse direction y on their two opposite longitudinal sides. The upper rail 10a has slot-like openings 12 in which the tooth-like projections 18 of the two locking elements 16a, 16b are guided.

Die Unterschiene 10b weist zahnartige Durchbrüche 14 auf, in welche die zahnartigen Vorsprünge 18 der beiden Verriegelungselemente 16a, 16b wenigstens teilweise eintreten, wenn die beiden Verriegelungselemente 16a, 16b in einer Verriegelungsstellung, in welcher eine Bewegung der Oberschiene 10a relativ zur Unterschiene 10b gesperrt ist, überführt sind. Die Durchbrüche 14 können bevorzugt wenigstens eine angeschrägte Seitenfläche aufweisen, insbesondere können die Durchbrüche 14 konisch ausgeführt sein, um ein Eintreten der Vorsprünge 18 zu erleichtern und eine Spielfreistellung zwischen der Oberschiene 10a und der Unterschiene 10b zu ermöglichen.The lower rail 10b has tooth-like openings 14 into which the tooth-like projections 18 of the two locking elements 16a, 16b at least partially enter when the two locking elements 16a, 16b are in a locking position in which a movement of the upper rail 10a relative to the lower rail 10b is blocked, are convicted. The openings 14 can preferably have at least one beveled side surface, in particular the openings 14 can be conical in order to facilitate entry of the projections 18 and to allow clearance between the upper rail 10a and the lower rail 10b.

Zur Überführung der beiden Verriegelungselemente 16a, 16b von der Verriegelungsstellung in die Entriegelungsstellung ist jeweils ein Führungsstift 20 mit den Verriegelungselementen 16a, 16b verbunden. Der Führungsstift 20 ist in einer Durchgangsöffnung der Oberschiene 10a linear geführt. Zur Überführung der beiden Verriegelungselemente 16a, 16b von der Entriegelungsstellung in die Verriegelungsstellung ist jeweils eine Rückstellfeder 22 vorgesehen.To transfer the two locking elements 16a, 16b from the locking position to the unlocking position, a guide pin 20 is connected to the locking elements 16a, 16b. The guide pin 20 is linearly guided in a through opening in the upper rail 10a. To transfer the two locking elements 16a, 16b from the unlocking position to the locking position, a return spring 22 is provided in each case.

In Fig. 4 ist eine ausschnittsweise Darstellung eines Längsschnitts des Schienenpaares von Fig. 2 in entriegelter Stellung gezeigt. Die beiden Verriegelungselemente 16a, 16b sind maximal nach unten verfahren, so dass diese an einem Bodenabschnitt der schlitzartigen Öffnungen 12 der Oberschiene 10a anliegen. Die zahnartigen Vorsprünge 18 der beiden Verriegelungselemente 16a, 16b sind somit zu den zahnartigen Durchbrüchen 14 der Unterschiene 10b maximal beabstandet und geben das Schienenpaar 10 in Längsrichtung frei.In Fig. 4 FIG. 13 is a fragmentary view of a longitudinal section of the pair of rails from FIG Fig. 2 shown in the unlocked position. The two locking elements 16a, 16b are moved maximally downwards, so that they rest against a bottom section of the slot-like openings 12 of the upper rail 10a. The tooth-like projections 18 of the two locking elements 16a, 16b are thus at a maximum distance from the tooth-like openings 14 of the lower rail 10b and release the pair of rails 10 in the longitudinal direction.

In Fig. 5 ist eine ausschnittsweise Darstellung eines Längsschnitts des Schienenpaares von Fig. 2 in verriegelter Stellung gezeigt. Das in der Abbildung rechts dargestellte erste Verriegelungselement 16a ist lediglich teilweise in die Durchbrüche 14 eingetreten, und zwar so weit, bis jeweils einer der zahnartigen Vorsprünge 18 spielfreistellend zur Unterschiene 10b und zur Oberschiene 10a in Anlage kommt. Das erste Verriegelungselement 16a erzeugt nun die Spielfreistellung, wie es in der DE 100 50 957 A1 beschrieben ist, deren diesbezüglicher Offenbarungsgehalt hiermit ausdrücklich mit einbezogen wird. Die Einfalltiefe ist somit von den Toleranzen der spielfreistellenden zahnartigen Vorsprünge 18, der schlitzartigen Öffnung 12 in der Oberschiene 10a und der Durchbrüche 14 der Unterschiene 10b abhängig. Die erreichbare Verriegelungsfestigkeit ist in gewissem Maße abhängig von der Eintauchtiefe der zahnartigen Vorsprünge 18 des Verriegelungselement 16a, 16b in die zahnartigen Durchbrüche 14 der Unterschiene 10b, welche wiederum von einem Winkel der Seitenflächen zueinander abhängt.In Fig. 5 FIG. 13 is a fragmentary view of a longitudinal section of the pair of rails from FIG Fig. 2 shown in locked position. The first locking element 16a shown in the figure on the right has only partially entered the openings 14, until one of the tooth-like projections 18 comes into contact with the lower rail 10b and the upper rail 10a without play. The first locking element 16a now generates the clearance clearance, as shown in FIG DE 100 50 957 A1 is described, the relevant disclosure content of which is hereby expressly included. The depth of incidence is thus dependent on the tolerances of the tooth-like projections 18 which remove play, the slot-like opening 12 in the upper rail 10a and the openings 14 in the lower rail 10b. The achievable locking strength depends to a certain extent on the depth of immersion of the tooth-like projections 18 of the locking element 16a, 16b in the tooth-like openings 14 of the lower rail 10b, which in turn depends on an angle of the side surfaces to one another.

Das in der Abbildung links dargestellte zweite Verriegelungselement 16b hat keine spielfreistellende Funktion. Die Eintauchtiefe wird durch einen Zahngrund der zahnartigen Durchbrüche 14 der Unterschiene 10b begrenzt. Das zweite Verriegelungselement 16b ist somit dazu eingerichtet, im verriegelten Zustand stets durch die erreichte maximal mögliche Eintauchtiefe, auch die für das zweite Verriegelungselement 16b maximal mögliche Verriegelungsfestigkeit bereitzustellen, bzw. zu erreichen.The second locking element 16b shown in the figure on the left has no play-relieving function. The immersion depth is limited by a tooth base of the tooth-like openings 14 of the lower rail 10b. The second locking element 16b is thus designed to always provide or achieve the maximum possible locking strength for the second locking element 16b through the maximum possible immersion depth achieved in the locked state.

Die in der vorstehenden Beschreibung, den Ansprüchen und den Zeichnungen offenbarten Merkmale können sowohl einzeln als auch in Kombination für die Verwirklichung der Erfindung in ihren verschiedenen Ausgestaltungen von Bedeutung sein.The features disclosed in the above description, the claims and the drawings can be important both individually and in combination for the implementation of the invention in its various embodiments.

Obwohl die Erfindung in den Zeichnungen und der vorausgegangenen Darstellung im Detail beschrieben wurde, sind die Darstellungen illustrativ und beispielhaft und nicht einschränkend zu verstehen. Insbesondere ist die Wahl der zeichnerisch dargestellten Proportionen der einzelnen Elemente nicht als erforderlich oder beschränkend auszulegen. Weiterhin ist die Erfindung insbesondere nicht auf die erläuterten Ausführungsbeispiele beschränkt. Weitere Varianten der Erfindung und ihre Ausführung ergeben sich für den Fachmann aus der vorangegangenen Offenbarung, den Figuren und den Ansprüchen.Although the invention has been described in detail in the drawings and the preceding representation, the representations are to be understood as illustrative and exemplary and not restrictive. In particular, the choice of the proportions of the individual elements shown in the drawing is not to be interpreted as necessary or restrictive. Furthermore, the invention is in particular not restricted to the exemplary embodiments explained. Further variants of the invention and their implementation emerge for the person skilled in the art from the preceding disclosure, the figures and the claims.

In den Ansprüchen verwendete Begriffe wie "umfassen", "aufweisen", "beinhalten", "enthalten" und dergleichen schließen weitere Elemente oder Schritte nicht aus. Die Verwendung des unbestimmten Artikels schließt eine Mehrzahl nicht aus. Eine einzelne Einrichtung kann die Funktionen mehrerer in den Ansprüchen genannten Einheiten bzw. Einrichtungen ausführen.Terms such as "comprise", "have", "include", "contain" and the like used in the claims do not exclude further elements or steps. The use of the indefinite article does not exclude a plurality. A single device can perform the functions of several units or devices mentioned in the claims.

BezugszeichenlisteList of reference symbols

11
FahrzeugsitzVehicle seat
1a1a
erster Teilfirst part
1b1b
zweiter Teilsecond part
33
SitzteilSeat part
55
Lehnerest
1010
SchienenpaarPair of rails
10a10a
OberschieneHead rail
10b10b
UnterschieneLower rail
1212
schlitzartige Öffnung (der Oberschiene)slot-like opening (of the head rail)
1414th
Durchbruch (der Unterschiene)Breakthrough (of the lower rail)
16a16a
erstes Verriegelungselementfirst locking element
16b16b
zweites Verriegelungselementsecond locking element
1818th
zahnartiger Vorsprung (des Verriegelungselements)tooth-like projection (of the locking element)
2020th
FührungsstiftGuide pin
2222nd
RückstellfederReturn spring
xx
LängsrichtungLongitudinal direction
yy
QuerrichtungTransverse direction
zz
VertikalrichtungVertical direction

Claims (14)

  1. Longitudinal adjuster, in particular for a vehicle seat (1), comprising two rail pairs (10) which are arranged at a distance from one another and are each constructed from a seat-mounted top rail (10a) and a structure-mounted bottom rail (10b), comprising a first locking element (16a) and at least one second locking element (16b) which are held on the top rail (10a) and, in a locking position, block a movement of the top rail (10a) relative to the bottom rail (10b), wherein the bottom rail (10b) has apertures (14) and the top rail (10a) has slot-like openings (12), wherein the first locking element (16a) and the at least one second locking element (16b), on the two opposite longitudinal sides thereof, have tooth-like projections (18) which are guided in the slot-like openings (12) and which, in the locking position, pass through both the slot-like openings (12) and also the apertures (14), wherein only the first locking element (16a), in the locking position, only partially engages into the apertures (14) for eliminating play of the rail pair, while the at least one second locking element (16b), in the locking position, is always fully inserted into the apertures (14),
    characterized in that
    the outer dimension of the respective locking elements (16a, 16b) is configured differently.
  2. Longitudinal adjuster according to Claim 1, wherein further locking elements (16a, 16b) are provided.
  3. Longitudinal adjuster according to Claim 2, wherein the locking elements (16a, 16b) are arranged one behind the other in the longitudinal direction (x).
  4. Longitudinal adjuster according to either of Claims 2 and 3, wherein a total of two to five locking elements (16a, 16b) are used.
  5. Longitudinal adjuster according to one of Claims 1 to 4, wherein a length and a width of the respective locking elements (16a, 16b) are configured differently.
  6. Longitudinal adjuster according to one of Claims 1 to 5, wherein the number of tooth-like projections (18) on the respective locking elements (16a, 16b) is configured differently.
  7. Longitudinal adjuster according to one of Claims 1 to 6, wherein the outer shape of the tooth-like projections (18) on the respective locking elements (16a, 16b) is designed differently.
  8. Longitudinal adjuster according to Claim 7, wherein the tooth-like projections (18) of at least one locking element (16a, 16b) parallel to the transverse direction (y) are of conical design.
  9. Longitudinal adjuster according to either of Claims 7 and 8, wherein the tooth-like projections (18) of at least one locking element (16a, 16b) have, as viewed in the transverse direction (y), laterally beveled side flanks.
  10. Longitudinal adjuster according to one of Claims 1 to 9, wherein the locking elements (16a, 16b) are each prestressed in the direction of the locking position by means of a centrally arranged return spring (22).
  11. Longitudinal adjuster according to one of Claims 1 to 10, wherein the locking elements (16a, 16b) are each guided linearly in the vertical direction (z) by means of a guide pin (20) which is arranged eccentrically in the longitudinal direction (x).
  12. Longitudinal adjuster according to Claim 11, wherein the guide pins (20) are guided in passage openings of the top rail (10a).
  13. Vehicle seat (1), in particular a vehicle rear seat, having a seat part (3), a backrest (5) which is connected in an articulated manner to the seat part (3), and a longitudinal adjuster according to one of Claims 1 to 12.
  14. Vehicle seat (1) according to Claim 13, wherein the vehicle seat (1) has a first part (1a) and a second part (1b), wherein the total seat width is divided in a ratio of 40:60 between the first part (1a) and the second part (1b).
EP17723290.7A 2016-04-28 2017-04-25 Longitudinal adjuster and vehicle seat Active EP3448714B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016207316 2016-04-28
DE102016215958.5A DE102016215958A1 (en) 2016-04-28 2016-08-25 Longitudinal adjuster
PCT/EP2017/059833 WO2017186741A1 (en) 2016-04-28 2017-04-25 Longitudinal adjuster and vehicle seat

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EP3448714A1 EP3448714A1 (en) 2019-03-06
EP3448714B1 true EP3448714B1 (en) 2020-11-18

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US (1) US20190135140A1 (en)
EP (1) EP3448714B1 (en)
CN (1) CN109070771B (en)
DE (1) DE102016215958A1 (en)
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CN109070771B (en) 2021-01-29
WO2017186741A1 (en) 2017-11-02
DE102016215958A1 (en) 2017-11-02
US20190135140A1 (en) 2019-05-09
EP3448714A1 (en) 2019-03-06
CN109070771A (en) 2018-12-21

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